diff --git a/patches/ntdll-NtAlertThreadByThreadId/0009-ntdll-Reimplement-Win32-futexes-on-top-of-thread-ID-.patch b/patches/ntdll-NtAlertThreadByThreadId/0009-ntdll-Reimplement-Win32-futexes-on-top-of-thread-ID-.patch
index 98adf2ef..35dd7a31 100644
--- a/patches/ntdll-NtAlertThreadByThreadId/0009-ntdll-Reimplement-Win32-futexes-on-top-of-thread-ID-.patch
+++ b/patches/ntdll-NtAlertThreadByThreadId/0009-ntdll-Reimplement-Win32-futexes-on-top-of-thread-ID-.patch
@@ -1,4 +1,4 @@
-From 101957dbdaa322a7078e8ff49197e580a8b3a82c Mon Sep 17 00:00:00 2001
+From fb716c2886466b38ca0dcb5f993d66ef0dbb499e Mon Sep 17 00:00:00 2001
 From: Zebediah Figura <z.figura12@gmail.com>
 Date: Mon, 2 Nov 2020 20:24:07 -0600
 Subject: [PATCH] ntdll: Reimplement Win32 futexes on top of thread-ID alerts.
@@ -6,12 +6,12 @@ Subject: [PATCH] ntdll: Reimplement Win32 futexes on top of thread-ID alerts.
 Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
 ---
  dlls/ntdll/ntdll_misc.h  |   2 +
- dlls/ntdll/sync.c        | 154 ++++++++++++++++++++++++++++++++++++-
+ dlls/ntdll/sync.c        | 155 ++++++++++++++++++++++++++++++++++++-
  dlls/ntdll/thread.c      |   2 +
  dlls/ntdll/unix/loader.c |   3 -
  dlls/ntdll/unix/sync.c   | 162 ---------------------------------------
  dlls/ntdll/unixlib.h     |   6 +-
- 6 files changed, 156 insertions(+), 173 deletions(-)
+ 6 files changed, 157 insertions(+), 173 deletions(-)
 
 diff --git a/dlls/ntdll/ntdll_misc.h b/dlls/ntdll/ntdll_misc.h
 index 41e8666a25c..8ba5c2e22fd 100644
@@ -27,7 +27,7 @@ index 41e8666a25c..8ba5c2e22fd 100644
  extern LCID user_lcid, system_lcid;
  extern DWORD ntdll_umbstowcs( const char* src, DWORD srclen, WCHAR* dst, DWORD dstlen ) DECLSPEC_HIDDEN;
 diff --git a/dlls/ntdll/sync.c b/dlls/ntdll/sync.c
-index 8df7015df9f..786289521e7 100644
+index 8df7015df9f..c3dfa0bcab1 100644
 --- a/dlls/ntdll/sync.c
 +++ b/dlls/ntdll/sync.c
 @@ -37,6 +37,13 @@
@@ -192,7 +192,7 @@ index 8df7015df9f..786289521e7 100644
  }
  
  /***********************************************************************
-@@ -553,5 +684,22 @@ void WINAPI RtlWakeAddressAll( const void *addr )
+@@ -553,5 +684,23 @@ void WINAPI RtlWakeAddressAll( const void *addr )
   */
  void WINAPI RtlWakeAddressSingle( const void *addr )
  {
@@ -208,7 +208,8 @@ index 8df7015df9f..786289521e7 100644
 +    {
 +        for (i = 0; i < ARRAY_SIZE(array->entries); ++i)
 +        {
-+            if (array->entries[i].addr == addr)
++            if (array->entries[i].addr == addr
++                    && InterlockedCompareExchangePointer( &array->entries[i].addr, NULL, (void *)addr ) == addr)
 +            {
 +                NtAlertThreadByThreadId( array->entries[i].tid );
 +                return;